The phrase "regional schools" refers to educational institutions that mainly serve students from a particular region or area, rather than being open to students from all over. Full definition
The job of regional schools commissioners is to oversee academies and free schools in their areas, doing a job similar to that of local authorities for council - run schools. (bbc.co.uk)
I have the privilege of being part of regional school where school leaders are in charge of their own hiring, where expectations for students are high, and where zip code becomes irrelevant. (educationpost.org)
When a new regional school district is formed, a new funding formula can also be placed on the ballot. (b4njkids.org)